15,321 research outputs found
Inflection point inflation and reheating
We revisit the inflection point inflation with an extended discussion to
large field values and consider the reheating effects on the inflationary
predictions. Parametrizing the reheating dynamics in terms of the reheating
temperature and the equation of state during inflation, we show how the
observationally favored parameter space of inflection point inflation is
affected by reheating dynamics. Consequently, we apply the general results to
the inflation models with non-minimal coupling, such as the SM Higgs inflation
and the Higgs inflation.Comment: 27 pages, 8 figures, Improved discussion on general inflection point
inflatio
Resonant SIMP dark matter
We consider a resonant SIMP dark matter in models with two singlet complex
scalar fields charged under a local dark . After the is broken
down to a discrete subgroup, the lighter scalar field becomes a SIMP dark
matter which has the enhanced annihilation cross section near
the resonance of the heavier scalar field. Bounds on the SIMP self-scattering
cross section and the relic density can be fulfilled at the same time for
perturbative couplings of SIMP. A small gauge kinetic mixing between the SM
hypercharge and dark gauge bosons can be used to make SIMP dark matter in
kinetic equilibrium with the SM during freeze-out.Comment: 14 pages, 5 figures, Improved discussion on thermal-averaged
annihilation cross sectio
Nonmonotonic behavior of resistance in a superconductor-Luttinger liquid junction
Transport through a superconductor-Luttinger liquid junction is considered.
When the interaction in the Luttinger liquid is repulsive, the resistance of
the junction with a sufficiently clean interface shows nonmonotonic
temperature- or voltage-dependence due to the competition between the
superconductivity and the repulsive interaction. The result is discussed in
connection with recent experiments on single-wall carbon nanotubes in contact
with superconducting leads.Comment: Revtex4, 2 eps figure files, slightly revised from an earlier version
submitted to PRL on 2001.12.
Forbidden Channels and SIMP Dark Matter
In this review, we focus on dark matter production from thermal freeze-out
with forbidden channels and SIMP processes. We show that forbidden channels can
be dominant to produce dark matter depending on the dark photon and / or dark
Higgs mass compared to SIMP.Comment: 5 pages, Prepared for the proceedings of the 13th International
Conference on Gravitation, 3-7 July 201
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